<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
       <span style="color: red;">${error}</span>
        <form action="/login">
            用户名 ：<input type="text" name="username"><br>
            密码 ：<input type="text" name="password"><br>
            <input type="submit">
        </form>
</body>
</html>
